This is what too much steering angle looks like... maybe that was just a goof-up, but if you do that on every corner, you are losing a lot of time to it.

Try to pay attention to how the car is responding to steering inputs. If you are getting diminishing returns from additional steering angle, then you are using too much. Your car will rotate more quickly if you smoothly use "just enough" steering angle.

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Photo animation of my little brother, doing it closer to "right", although he could have been a few feet closer to the inside cone: